Work Principle

The ceramic filter consists of several discs, each composed of sector-shaped ceramic filter plates. These discs are mounted on a main shaft, which is driven by a motor via a speed reducer, gears, and a chain.

The discs rotate clockwise within the slurry tank. In the suction zone, the pressure difference created across the ceramic filter plates by a vacuum pump causes the slurry to adhere to the plates, forming a filter cake.

Simultaneously, an agitator operates with a reciprocating motion to prevent solid sedimentation. After the filter cake forms, the ceramic plates rotate into the drying zone, where moisture continues to be extracted. The filtrate drawn out during the process passes through the ceramic plates, filtrate pipes, the distribution head, and the vacuum tank before being discharged from the equipment.

Subsequently, as the ceramic plates pass through the discharge zone, a ceramic scraper removes the filter cake; the cake slides off both sides of the scraper into a hopper or onto a conveyor belt for transport to a designated location.

After the filter cake is discharged, the ceramic plates rotate to the backwashing position. Here, the flow direction is reversed relative to the vacuum suction, creating an outward flow that clears particles clogging the ceramic micropores before the plates are re-immersed in the slurry. After prolonged operation, a comprehensive shutdown cleaning of the ceramic filter plates can be performed. This process involves using a backwashing fluid—which may be supplemented with chemical agents—combined with ultrasonic oscillation to thoroughly clean the plates and maintain the filter's high operational efficiency.